Refractometer



FIG. 1 is a top, front, and right side perspective view of firstembodiment of our new design for a refractometer in an open position;

FIG. 2 is a top, front, and right side perspective view thereof in aclosed position;

FIG. 3 is a top plan view thereof in a closed position;

FIG. 4 is a bottom plan view thereof in a closed position;

FIG. 5 is a right side elevation view thereof in a closed position, theleft side being a mirror image thereof;

FIG. 6 is a rear elevation view thereof in a closed position;

FIG. 7 is a front elevation view thereof in a closed position;

FIG. 8 is a top, front, and right side perspective view of a secondembodiment of our new design for a refractometer in an open position;

FIG. 9 is a top, front, and right side perspective view thereof in aclosed position;

FIG. 10 is a top plan view thereof in a closed position;

FIG. 11 is a bottom plan view thereof in a closed position;

FIG. 12 is a right side elevation view thereof in a closed position, theleft side being a mirror image thereof;

FIG. 13 is a front elevation view thereof in a closed position;

FIG. 14 is a rear elevation view thereof in a closed position;

FIG. 15 is a top, front, and right side perspective view of a thirdembodiment of our new design for a refractometer in an open position;

FIG. 16 is a top, front, and right side perspective view thereof in aclosed position;

FIG. 17 is a top plan view thereof in a closed position;

FIG. 18 is a bottom plan view thereof in a closed position;

FIG. 19 is a right side elevation view thereof in a closed position, theleft side being a mirror image thereof;

FIG. 20 is a rear elevation view thereof in a closed position;

FIG. 21 is a front elevation view thereof in a closed position;

FIG. 22 is a top, front, and right side perspective view of a fourthembodiment of our new design for a refractometer in an open position;

FIG. 23 is a top, front, and right side perspective view thereof in aclosed position;

FIG. 24 is a top plan view thereof in a closed position;

FIG. 25 is a bottom plan view thereof in a closed position;

FIG. 26 is a right side elevation view thereof in a closed position, theleft side being a mirror image thereof;

FIG. 27 is a front elevation view thereof in a closed position; and,

FIG. 28 is a rear elevation view thereof in a closed position.

The ornamental design for a refractometer, as substantially shown anddescribed.